<html>.
	<head>
		<title>	smile </title>
		<script> 
			function init(){
				var ctx;
				ctx = document.getElementById("canvas").getContext('2d');
				ctx.beginPath();
				ctx.strokeStyle = "rgb(200,0,0)";
				ctx.arc(200, 200, 50, 0, Math.PI, true);
				ctx.closePath();
				ctx.fill();
				ctx.strokeStyle="rgb(255,0,0)";
				ctx.lineWidth = 5;
				ctx.stroke();
				
			}
		</script>
		<style>	</style>
	</head>
	<body onload="init();">
		<canvas id = "canvas" width= "400" height="300">
			Yoour browser doesn't support canvas
		</canvas>
	
	</body>
</html>	